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A Batteries Life
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Transcript of A Batteries Life
Christina D.
A Batteries LifeThe Scientific Method
Christina D.
Brands
Duracell Energizer Rayovac Sunbeam
Christina D.
Variables The Control Variable- How much time it
will take for each flashlight to burn out. The Independent Variable- Four different
types of AAA Alkaline batteries. The Dependent Variable-The amount of
time it takes for each light to burn out.
Materials Three of each type of battery Four flashlights (same brand) Index Cards Sharpies
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Hypothesis
There are many different types of batteries, the batteries in this experiment are Dry Celled batteries. They convert chemical energy into electrical energy. The batteries cell is composed of a zinc anode (-), and a graphite cathode (+). The electrons travel from anode to cathode creating energy, when the electrons die out so will the energy. As a result the flashlight will burn out.
I use batteries all day everyday, from phone batteries, cordless curling iron’s, and my numerous flashlights. I couldn’t image a life with out batteries and I'm sure my fuzzy friend The Energizer Bunny is going to last the longest.
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Name Duracell Energizer Rayovac Sunbeam
Manufacturer Procter & Gamble
Energizer Holdings Inc.
Rayovac Sunbeam- Oster
Suggested Use Flashlights, Remotes, Smoke Detectors
Hearing Ads, Smoke Detectors, Handheld tools, Flash lights
Hearing Aides, Flash lights
Clocks, Remote Controls
Rechargeable No No No No
Purchase Place Walmart Walmart Walmart The Dollar Tree
Purchase Price 8 count-$6.37
8 count-$6.37
8 count-$4.97
8 count-$1.00
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PROCEDURE
I USED THESE STEPS TO INVESTIGATE THE LIFE OF BATTERIES.
Opened and tested each 200 Lumen, High Intensity Flashlights.
Inserted three of each brand of AAA Alkaline batteries into lights.
Placed flash lights on appropriately labeled index card.
Turned each flash light on low setting. Documented time. Checked lights in thirty minute intervals. Recorded when lights bunt out.
ResultsBrand Duracel
lEnergizer
Rayovac Sunbeam
Turned on
9:30 pm 9:30 pm 9:30 pm 9:30 pm
Burnt Out
2:30 am 1:30 am 1:30 am 12:00 am
Christina D.
In Conclusion
My hypothesis was that Energizer would last longer, based on personal choice. I was wrong “The Copper Top”, Duracell was the winner. Although it was a pretty close race, I would advise people to spend the extra few bucks, and at least get Rayovac batteries for important items such as hearing aids and smoke detectors.